Patents by Inventor Stefan Lundberg
Stefan Lundberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8307214Abstract: A method for restricting access to media data generated by a camera comprising: setting a non-public initial user key, KICU, in the camera, providing a user client with the initial user key, KICU, establishing an authenticated relation between the user client and the camera by sending an authentication message including information based on the initial user key, KICU, from the user client to the camera, checking if an operational user key (KOCU) is set in the camera, and performing, in response to the act of checking if the operational user key (KOCU) is set in the camera, the acts a)-d) only if the operational user key (KOCU) is not set: a) acquiring an operational user key (KOCU), b) setting the operational user key (KOCU) in the camera, c) sending the operational user key (KOCU) to the user client, and d) indicating in the camera that the operational user key (KOCU) is set.Type: GrantFiled: June 23, 2010Date of Patent: November 6, 2012Assignee: Axis ABInventors: Stefan Lundberg, Christian Gehrmann, Joacim Tullberg, Fredrik Ternerot
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Publication number: 20120249866Abstract: A pan-tilt camera is arranged to include a camera head, a stationary unit, an intermediate member arranged between the camera head and the stationary unit, a first rotary joint rotatably connecting the camera head to the intermediate member, and a second rotary joint, rotatably connecting the intermediate member to the stationary unit. A communication path is provided between the camera head and the stationary unit, including an optical waveguide arranged between the camera head and the stationary unit. The optical waveguide has a first end positioned at the first rotary joint to receive light from the camera head through the first rotary joint. The other end of the waveguide is positioned at the second rotary joint and is arranged to send light to the stationary unit through the second rotary joint.Type: ApplicationFiled: October 5, 2010Publication date: October 4, 2012Applicant: AXIS ABInventors: Carl-Axel Alm, Stefan Lundberg, Willy Sagefalk
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Publication number: 20120243861Abstract: A dome window for a surveillance camera device includes a first section and a second section. The first section is joined to the second section along a joint in which a joint end of the first section is attached to a joint end of the second section. A light absorber is arranged in or on the joint.Type: ApplicationFiled: March 23, 2012Publication date: September 27, 2012Applicant: AXIS ABInventors: Sven Svensson, Stefan Lundberg
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Patent number: 8208033Abstract: The present invention relates to a network enabled digital video camera arranged to be connected to a digital network. The network enabled digital video camera includes a digital network module arranged to transmit and receive digital signals, an input/output port being an electrical connector and being connected to the digital network module, and an analog video generator arranged to output an analog video signal. The input/output port connected to the digital network module is also connected to the analog video generator. The present invention also relates to an adaptor used to connect the network enabled digital video camera to an off-the-shelf video preview device.Type: GrantFiled: July 9, 2009Date of Patent: June 26, 2012Assignee: Axis ABInventors: Stefan Lundberg, Jon Hansson
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Publication number: 20120154583Abstract: A system and device perform a method for monitoring the accessibility of an emergency exit, which includes illuminating an area in front of the emergency exit by emitting light, detecting reflected light from the illuminated area using an image sensor, calculating a plurality of distances based on the detected reflected light for discrete positions in the image sensor, comparing the each of the plurality of distances with a predetermined distance, and generating an alarm signal if the comparing indicates a substantial difference in distance in at least one position in the image sensor.Type: ApplicationFiled: December 19, 2011Publication date: June 21, 2012Applicant: AXIS ABInventors: Stefan Lundberg, Carl-Axel Alm
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Publication number: 20110016319Abstract: A method for restricting access to media data generated by a camera comprising: setting a non-public initial user key, KICU, in the camera, providing a user client with the initial user key, KICU, establishing an authenticated relation between the user client and the camera by sending an authentication message including information based on the initial user key, KICU, from the user client to the camera, checking if an operational user key (KOCU) is set in the camera, and performing, in response to the act of checking if the operational user key (KOCU) is set in the camera, the acts a)-d) only if the operational user key (KOCU) is not set: a) acquiring an operational user key (KOCU), b) setting the operational user key (KOCU) in the camera, c) sending the operational user key (KOCU) to the user client, and d) indicating in the camera that the operational user key (KOCU) is set.Type: ApplicationFiled: June 23, 2010Publication date: January 20, 2011Applicant: AXIS ABInventors: Stefan Lundberg, Christian Gehrmann, Joacim Tullberg, Fredrik Ternerot
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Publication number: 20100119221Abstract: A camera assembly includes a camera arranged to be panable and tiltable, and a transparent view port cover. The transparent view port cover includes a first part and a second part arranged together to present different angles of view to the camera, the second part having a lens.Type: ApplicationFiled: November 10, 2009Publication date: May 13, 2010Applicant: AXIS ABInventor: Stefan Lundberg
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Publication number: 20100064029Abstract: A network connector device and a method for making image information sent through a first digital network accessible by a second digital network. A first and a second network connector are arranged to pass on digital network traffic, a network traffic buffer buffers the digital network traffic, an image session identifier identifies a network session from the buffered digital network traffic, containing image information. An image session tracker tracks the identified network session containing image information, an image extractor extracts image information from the identified network session containing image information, and an image information buffer buffers the extracted image information. An image information arranger arranges the image information from the image information buffer into at least one image sequence of related images, and a server makes accessible the at least one image sequence via a third network connector.Type: ApplicationFiled: September 9, 2009Publication date: March 11, 2010Applicant: AXIS ABInventors: Stefan Lundberg, Joacim Tullberg
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Publication number: 20100007750Abstract: The present invention relates to a network enabled digital video camera arranged to be connected to a digital network. The network enabled digital video camera includes a digital network module arranged to transmit and receive digital signals, an input/output port being an electrical connector and being connected to the digital network module, and an analog video generator arranged to output an analog video signal. The input/output port connected to the digital network module is also connected to the analog video generator. The present invention also relates to an adaptor used to connect the network enabled digital video camera to an off-the-shelf video preview device.Type: ApplicationFiled: July 9, 2009Publication date: January 14, 2010Applicant: AXIS ABInventors: Stefan Lundberg, Jon Hansson
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Patent number: 7525576Abstract: A camera is disclosed which includes: at least two image sensors, an image sensor selector, a multiplexer and an image processor. The at least two image sensors are configured to synchronously output successive pixels of image data. The image sensor selector is responsive to a pan and/or tilt signal input associated with a target view of the image data provided by the at least two image sensors, to output a select signal indicating for each synchronous output of pixels from the at least two image sensors a selected one of the at least two image sensors delivering a pixel within the target view. The multiplexer has inputs, an output, and a control input. The multiplexer inputs are each coupled to a corresponding one of the at least two image sensors to receive the successive pixels of image data there from.Type: GrantFiled: February 13, 2004Date of Patent: April 28, 2009Assignee: Axis, ABInventors: Per Kannermark, Stefan Lundberg
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Patent number: 7505635Abstract: The invention relates to a method and a system for digitally processing of frequently updated images from a camera. The system comprises at least one camera (2), at least one display unit, a network (6) for connecting the at least one camera with at least one display unit, and an image processing means (30). The image processing means comprises means for defining a first scaling area and a peripheral scaling area, which is enclosing the first scaling area, within an acquired digital image, and means for scaling the peripheral scaling area differently than the first scaling area so that the peripheral scaling area is downscaled in relation to the first scaling area, wherein the first scaling area is uniformly scaled in both a vertical and a horizontal direction.Type: GrantFiled: September 26, 2001Date of Patent: March 17, 2009Assignee: Axis ABInventors: Carl-Axel Alm, Gunnar Dahlgren, Per Kannermark, Stefan Lundberg
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Patent number: 7268834Abstract: Method and apparatus for combining a first video signal and a second video signal. The method comprising the act of replacing data in the second video signal with corresponding, in respect of a position within an image, data from the first video signal when said data in the second video signal represent a predefined repetitive pattern.Type: GrantFiled: February 4, 2004Date of Patent: September 11, 2007Assignee: Axis, ABInventors: Stefan Lundberg, Gunnar Dahlgren
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Patent number: 7131022Abstract: A timing generator comprising a programmable program memory that is arranged to comprise program instructions for controlling the generation of timing signals, a timing generator controller for processing the program instructions from the program memory, and an output timing signal controller. The output timing signal controller is connected to the timing generator controller for reception of control data and a timing signal specification that determine the appearance of said timing signals. The output timing signal controller is arranged to provide a plurality of output timing signals. The timing generator controller includes a decoder for decoding program instructions from the memory. An imaging device comprising an image sensor, an analogue image processor, an analogue to digital (A/D) converter, and a timing generator, according to the description given above, providing timing signals to the image sensor, the analogue image processor and the A/D converter.Type: GrantFiled: April 9, 2003Date of Patent: October 31, 2006Assignee: Axis ABInventors: Gunnar Dahlgren, Per Kannermark, Stefan Lundberg
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Patent number: 6963375Abstract: A digital camera has a plurality of fields of view combined with a panning and/or tilting functionality. The camera comprises: a camera housing (6) with an optical input (5), such as a lens or objective. The camera also has an image capturing unit for producing a digital image from light received through the optical input, a controller, a mirror (1) having a first plane surface (12) and a second curved surface (13), and a driving device (7) coupled to the mirror and adapted to rotate the mirror to a first position, where the first plane surface is inserted into an optical path (31) of the digital camera, thereby providing a first field of view of the digital camera. The driving device is also adapted to rotate the mirror to a second position, where the second curved surface is inserted into the optical path of the digital camera, thereby providing a second field of view of the digital camera.Type: GrantFiled: October 11, 2000Date of Patent: November 8, 2005Assignee: Axis, ABInventor: Stefan Lundberg
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Publication number: 20040196378Abstract: A camera is disclosed which includes: at least two image sensors, an image sensor selector, a multiplexer and an image processor. The at least two image sensors are configured to synchronously output successive pixels of image data. The image sensor selector is responsive to a pan and/or tilt signal input associated with a target view of the image data provided by the at least two image sensors, to output a select signal indicating for each synchronous output of pixels from the at least two image sensors a selected one of the at least two image sensors delivering a pixel within the target view. The multiplexer has inputs, an output, and a control input. The multiplexer inputs are each coupled to a corresponding one of the at least two image sensors to receive the successive pixels of image data there from.Type: ApplicationFiled: February 13, 2004Publication date: October 7, 2004Applicant: Axis AB., A Swedish CorporationInventors: Per Kannermark, Stefan Lundberg
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Publication number: 20040183949Abstract: Method and apparatus for combining a first video signal and a second video signal. The method comprising the act of replacing data in the second video signal with corresponding, in respect of a position within an image, data from the first video signal when said data in the second video signal represent a predefined repetitive pattern.Type: ApplicationFiled: February 4, 2004Publication date: September 23, 2004Inventors: Stefan Lundberg, Gunnar Dahlgren
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Publication number: 20040028292Abstract: The invention relates to a method and a system for digitally processing of frequently updated images from a camera.Type: ApplicationFiled: September 2, 2003Publication date: February 12, 2004Inventors: Carl-Axel Alm, Gunnar Dahlgren, Per Kannermark, Stefan Lundberg
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Publication number: 20040019817Abstract: A timing generator comprising a programmable program memory that is arranged to comprise program instructions for controlling the generation of timing signals, a timing generator controller for processing the program instructions from the program memory, and an output timing signal controller. The output timing signal controller is connected to the timing generator controller for reception of control data and a timing signal specification that determine the appearance of said timing signals. The output timing signal controller is arranged to provide a plurality of output timing signals. The timing generator controller includes a decoder for decoding program instructions from the memory. An imaging device comprising an image sensor, an analogue image processor, an analogue to digital (A/D) converter, and a timing generator, according to the description given above, providing timing signals to the image sensor, the analogue image processor and the A/D converter.Type: ApplicationFiled: April 9, 2003Publication date: January 29, 2004Applicant: AXIS COMMUNICATIONS ABInventors: Gunnar Dahlgren, Per Kannermark, Stefan Lundberg
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Patent number: 6381687Abstract: A memory channel means transferring data streams between different blocks and an internal memory means on a data chip, wherein said memory channel means comprises several memory channels. Each channel has source and destination data stream interfaces, wherein each interface is connectable to different blocks, and a flexible address generator generating source and destination addresses for the internal memory means, wherein the order of the data being transferred is changed.Type: GrantFiled: February 18, 1999Date of Patent: April 30, 2002Assignee: Axis ABInventors: Stefan Sandström, Stefan Lundberg
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Publication number: 20020019905Abstract: A memory channel means transferring data streams between different blocks and an internal memory means on a data chip, wherein said memory channel means comprises several memory channels. Each channel has source and destination data stream interfaces, wherein each interface is connectable to different blocks, and a flexible address generator generating source and destination addresses for the internal memory means, wherein the order of the data being transferred is changed.Type: ApplicationFiled: February 18, 1999Publication date: February 14, 2002Inventors: STEFAN SANDSTROM, STEFAN LUNDBERG